Astronomical Data Center

ADCADC/CDS Standard Document for Catalog:
/external/astrom/E1003/

The ADC has expanded its resources in order to better serve our users, we have developed a new category called "external" to complement our catalogs and journal table directories. You can access the data set described here through the URL:
http://isis.spa.umn.edu/homepage.aps.html.

The following is an abbreviated "ReadMe" document that describes this external data set.
E/I/3	APS Plate Database                      (Humphreys+ 1996)
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APS Image Database
	Humphreys R. M., Cornuelle C. S., Aldering G., Odewahn S. C., 
        Larsen J., Thurmes P., Landau R., Ghigo F. D., Zumach W., 
        Stockwell E. B., Pennington R. L., Cabanela J., Bryja C., Musukula S.
	<unpublished (1996)>
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ADC_Keywords: Positional data; Historical catalog; Photographic catalog; 
              Combined data; Cross identifications; Surveys; Photometric data; 
              On-line catalog; Images; External catalog

Location: http://isis.spa.umn.edu/homepage.aps.html

Description:
	The APS Plate Database is a meta-database for the APS Catalog of the 
	POSS I.  The operation of the Automated Plate Scanner (APS) and the 
	scanning procedures and parameters are described in detail in 
        Pennington et al. (1993).  All 664 fields with |b| > 20 degrees and 
        both the blue and red (O and E) plates in each field have been 
        digitized.  The database holds information on the calibration, 
        location, exposure, etc., of each APS-scanned POSS I plate.  Image 
        requests are through the APS homepage at URL 
        http://isis.spa.umn.edu/homepage.aps.html. The APS Project is 
        supported by the NSF, NASA, and the University of Minnesota.

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(End)                     Gail L. Schneider [SSDOO/ADC]           26-Feb-1997
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